Any chance you could pm me what your settings are. ie fan settings ect
I seem to get a temp of about 78 at only +100mhz on core / +40mhz on memory
+500 on the memory shouldn't really be a problem (8000mhz). Although some folks memory seems to be less willing to budge a whole lot. I get a bigger boost in benchmarks from memory oc than core oc. Scores higher in 3dmark with memory at 8000 and base clock at 1152 than 7500 and 1200 bc for example.